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[executorch][muse] Serve images on CUDA batching - #24065
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/24065
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…ckends Stack from [ghstack](https://github.com/ezyang/ghstack/tree/0.15.0) (oldest at bottom): * #24076 * #24107 * #24075 * #24074 * #24073 * #24072 * #24066 * #24065 * #24064 * #24063 * __->__ #24062 Move the MLX executor's EngineEmbeddings (vision encoder + embed_text + MuseGlimmerMaterializer) into runtime/model_embeddings so the CUDA batching executors can materialize prepared image inputs the same way. MLX behavior is unchanged; it now holds a MuseGlimmerModelEmbeddings. Differential Revision: D125987290 Pull Request resolved: #24062
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Stack from [ghstack](https://github.com/ezyang/ghstack/tree/0.15.0) (oldest at bottom): * #24076 * #24107 * #24075 * #24074 * #24073 * #24072 * #24066 * #24065 * #24064 * __->__ #24063 * #24062 Steps that carry a prepared (image) input run forward_from_embeddings with the materialized rows; token-only steps keep the static forward_{N} methods and their CUDA graphs. SessionTable packs prepared rows as placeholders so the cache still plans their positions. Differential Revision: D125987291 Pull Request resolved: #24063
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Stack from [ghstack](https://github.com/ezyang/ghstack/tree/0.15.0) (oldest at bottom): * #24076 * #24107 * #24075 * #24074 * #24073 * #24072 * #24066 * #24065 * __->__ #24064 * #24063 * #24062 export_cuda_batching optionally adds vision_encoder, embed_text and a dynamic forward_from_embeddings over the same off-graph KV contract, and writes pos_embed.bin next to the program. Differential Revision: D125987292 Pull Request resolved: #24064
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Stack from [ghstack](https://github.com/ezyang/ghstack/tree/0.15.0) (oldest at bottom): * #24076 * #24107 * #24075 * #24074 * #24073 * #24072 * __->__ #24066 * #24065 * #24064 * #24063 * #24062 The CUDA DFlash executor accepts prepared image inputs on admission; image steps run the target from embeddings, then hidden taps and drafting proceed as for tokens. Differential Revision: D125987295 Pull Request resolved: #24066
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This PR was created by the merge bot to help merge the original PR into the main branch. ghstack PR number: #24065 by @Gasoonjia ^ Please use this as the source of truth for the PR details, comments, and reviews ghstack PR base: https://github.com/pytorch/executorch/tree/gh/Gasoonjia/88/base ghstack PR head: https://github.com/pytorch/executorch/tree/gh/Gasoonjia/88/head Merge bot PR base: https://github.com/pytorch/executorch/tree/gh/Gasoonjia/87/orig Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/Gasoonjia/88/orig Differential Revision: [D125987293](https://our.internmc.facebook.com/intern/diff/D125987293/) @diff-train-skip-merge Co-authored-by: gasoonjia <gasoonjia@icloud.com>
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Stack from ghstack (oldest at bottom):
The CUDA backend factory builds the image preparation spec from the shared
embeddings engine, and serve_batching passes --pos-embed-path through, so
image requests are served on regular CUDA batching.
Differential Revision: D125987293